Rufus would point out that he was well-aware that being a jerk to everyone wasn't going to do him any good. He could be very charming thank you very much. But Yuffie wouldn't believe him and he didn't really care to change her opinion of him. He just had to make sure that she wouldn't kill him where he stood.

Although, Yuffie bringing up Reno was a little surprising. Her comment made it sound like she has grown close to the Turk.

"Don't you know? I pay him to listen to me." Well, it was honestly a bit more than that. There was a genuine level of trust and respect that went both ways. They stayed together even after Shinra fell, after he lost his position. It meant something to him, although Rufus didn't want to reveal such things to her.